Math, asked by Minalarya, 1 year ago

Factorise: 4a²+b²+25c²-4ab-10bc+20ca

Answers

Answered by nikhat1

7

(2a)2+(-b)2+(5c)2+2*2a*(-b)+2*(-b)*5c+2*2a*5c
=(2a-b+5c) 2
=(2a-b+5c) (2a-b +5c)

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